Ford Racing 351 Aluminum Block 9.2-Inch DeckFord Performance has added 9. 2" deck height version of its Z351 aluminum Windsor block to its product line. This new 9. 2" deck height block is great for smaller displacement builds without the penalty of a taller deck. Like the 9. 5" deck height version, the block is cast from high strength 356 T6 grade aluminum and uses splayed 4 bolt main caps on #2 3 4 mains. The block is "user friendly" and designed to use conventional Windsor components like